Patent US4662940A successfully refreshed from Google Patents.
US4662940A
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Sealant composition and leak detector for automobile cooling systems and the like
Assignee: GOLD EAGLE Co A CORP OF
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Filing: 1985-04-18
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Granted: 1987-05-05
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Expires: 2005-04-18
Abstract
Abstract A stop-leak sealant composition for an internal combustion engine cooling system, hot water heating systems and the like consisting essentially of ginger rhizome flour, ground nut shells, boric acid, with or without additives to improve performance and more particularly with a fluorescent water-soluble leak detectng additive to detect leaks that cannot be stopped by the sealant composition.
Inventors
- 👤 John L. Monier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:29
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/12
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
58 words
A sealant and leak detector composition for use in the cooling system of an internal combustion engine, said composition comprising ginger rhizome flour, ground nut shells, boric acid powder, and a water-soluble fluorescent additive selected from the group consisting of pearlescent nacreous pigments, fluorescent dyes and optical brighteners, whereby unsealed leaks are detectable by examination under ultraviolet light.
Claim 2
Dependent Claim
58 words
A sealant and leak detector composition for use in the cooling system of an internal combustion engine, said composition comprising ginger rhizome flour, ground nut shells, boric acid powder, and a water-soluble fluorescent additive selected from the group consisting of pearlescent nacreous pigments, fluorescent dyes and optical brighteners, whereby unsealed leaks are detectable by examination under ultraviolet light.
Claim 3
Dependent Claim
15 words
The sealant and leak detector composition of claim 1 further comprising sodium lignin sulfonate powder.
Claim 4
Dependent Claim
13 words
The sealant and leak detector composition of claim 2 further comprising magnesium stearate.
Claim 5
Dependent Claim
84 words
The sealant and leak detector composition of claim 3 wherein said ginger rhizome flour and said nut shell powder are finely ground and mixed in proportions of substantially 50 to 75% by weight of said ginger rhizome flour, with an addition of about 1.5 to 3.5% by weight of said boric acid powder, 3 to 6% by weight of said sodium lignin sulfonate powder, 0 to 2% by weight of said magnesium stearate, and 2 to 12% by weight of said water-soluble fluorescent additive.
Claim 6
Independent Claim
93 words
A method of obtaining a sealant and leak detctor composition for the cooling system of an internal combustion engine, said method comprising the steps of: finely grinding nut shells, finely separately grinding ginger rhizomes, thoroughly mixing said ground nut shells and said ground ginger rhizomes with a water-soluble leak detector additive, boric acid and sodium lignin sulfonate powder, wherein said water-soluble leak detector additive is a water-soluble fluorescent material selected from the group consisting of pearlescent nacreous pigments, fluorescent dyes and optical brighteners, whereby unsealed leaks are detected by observation under ultraviolet light.
Claim 7
Independent Claim
93 words
A method of obtaining a sealant and leak detctor composition for the cooling system of an internal combustion engine, said method comprising the steps of: finely grinding nut shells, finely separately grinding ginger rhizomes, thoroughly mixing said ground nut shells and said ground ginger rhizomes with a water-soluble leak detector additive, boric acid and sodium lignin sulfonate powder, wherein said water-soluble leak detector additive is a water-soluble fluorescent material selected from the group consisting of pearlescent nacreous pigments, fluorescent dyes and optical brighteners, whereby unsealed leaks are detected by observation under ultraviolet light.
Claim 8
Dependent Claim
33 words
The method of claim 5 further comprising the step of forming dry pellets of said composition by compaction at a pressure of at least 2 tons per square inch (140 kg/cm 2 ).
Claim 9
Dependent Claim
12 words
The method of claim 6 further adding magnesium stearate to said composition.
Claim 10
Dependent Claim
59 words
The method of claim 5 wherein said nut shells and said ginger rhizomes are ground to a particle size capable of passing through a No. 30 mesh screen and said dry pellets are formed by compaction at a pressure between 20 tons per square inch (1,400 kg/cm 2 ) and 40 tons per square inch (2,800 kg/cm 2 ).
Claim 11
Dependent Claim
52 words
The method of claim 7 wherein the proportions by weight of said water-soluble leak detector additive, ginger rhizomes, boric acid powder, sodium lignin sulfonate powder, magnesium stearate and ground hardwood nut shells are respectively 2 to 12%, 50 to 75%, 1.5 to 3.5%, 5 to 6%, 0 to 2% and the balance.
Claim 12
Dependent Claim
68 words
A sealant and leak detector composition for a hot water circulation system comprising ginger rhizome flour, ground nut shells, boric acid powder, and a water-soluble fluorescent additive selected from the group consisting of 2,2'-(2.5 thiophenediyl)bis(5-tert-butyl-benzohaxazole), diamino-stilbenedisulfonic acid, cyanuric chloride, naphtotriazolystilbene, 4-methyl-7-dimethylamino coumarin, 4-methyl-7-diethylamino coumarin, benzoflavine, 3,6-dioxyphtalimide, erythrosine, esculin, 4-ethoxyacridone, 3,6-tetramethyldiamino-oxanthone, chromotropic acid, fluorescein, α-naphthylamine, B-naphthylamine, phloxine, salicylic acid, acridine, dichlorofluorescein, 3,6-dioxyxanthone, B-methylesculetin, resorufin, quininic acid, and mixtures thereof.
Claim 13
Dependent Claim
68 words
A sealant and leak detector composition for a hot water circulation system comprising ginger rhizome flour, ground nut shells, boric acid powder, and a water-soluble fluorescent additive selected from the group consisting of 2,2'-(2.5 thiophenediyl)bis(5-tert-butyl-benzohaxazole), diamino-stilbenedisulfonic acid, cyanuric chloride, naphtotriazolystilbene, 4-methyl-7-dimethylamino coumarin, 4-methyl-7-diethylamino coumarin, benzoflavine, 3,6-dioxyphtalimide, erythrosine, esculin, 4-ethoxyacridone, 3,6-tetramethyldiamino-oxanthone, chromotropic acid, fluorescein, α-naphthylamine, B-naphthylamine, phloxine, salicylic acid, acridine, dichlorofluorescein, 3,6-dioxyxanthone, B-methylesculetin, resorufin, quininic acid, and mixtures thereof.
Claim 14
Dependent Claim
15 words
The sealant and leak detector composition of claim 10 further comprising sodium lignin sulfonate powder.
Claim 15
Dependent Claim
13 words
The sealant and leak detector composition of claim 11 further comprising magnesium stearate.
Claim 16
Dependent Claim
84 words
The sealant and leak detector composition of claim 12 wherein said ginger rhizome flour and said nut shell powder are finely ground and mixed in proportions of substantially 50 to 75% by weight of said ginger rhizome flour, with an addition of about 1.5 to 3.5% by weight of said boric acid powder, 3 to 6% by weight of said sodium lignin sulfonate powder, 0 to 2% by weight of said magnesium stearate, and 2 to 12% by weight of said water-soluble fluorescent additive.
Claim 17
Independent Claim
103 words
A method of obtaining a sealant and leak detector composition for a hot water circulation system, said method comprising the steps of: finely grinding nut shells, finely separately grinding ginger rhizomes, thoroughly mixing said ground nut shells and said ground ginger rhizomes with a water-soluble leak detector additive, boric acid and sodium lignin sulfonate powder, wherein said water-soluble leak detector additive is selected from the group consisting of 2,2'-(2,5 thiophenediyl)bis(5-tert-butyl-benzohaxazole), diamino-stilbenedisulfonic acid, cyanuric chloride, naphtotriazolystilbene, 4-methyl-7-dimethylamino coumarin, 4-methyl-7-diethylamino coumarin, benzoflavine, 3,6-dioxy-phthalimide, erythrosine, esculine, 4-ethoxyacridone, 3,6-tetra-methyldiaminooxathone, chromotropic acid, fluorescein, α-naphthylamine, B-naphthylamine, phloxine, salicylic acid, acridine, dichlorofluorescein, 3,6-dioxyanthone, B-methylesculetin, resorufin, quininic acid, and mixture thereof.
Claim 18
Independent Claim
103 words
A method of obtaining a sealant and leak detector composition for a hot water circulation system, said method comprising the steps of: finely grinding nut shells, finely separately grinding ginger rhizomes, thoroughly mixing said ground nut shells and said ground ginger rhizomes with a water-soluble leak detector additive, boric acid and sodium lignin sulfonate powder, wherein said water-soluble leak detector additive is selected from the group consisting of 2,2'-(2,5 thiophenediyl)bis(5-tert-butyl-benzohaxazole), diamino-stilbenedisulfonic acid, cyanuric chloride, naphtotriazolystilbene, 4-methyl-7-dimethylamino coumarin, 4-methyl-7-diethylamino coumarin, benzoflavine, 3,6-dioxy-phthalimide, erythrosine, esculine, 4-ethoxyacridone, 3,6-tetra-methyldiaminooxathone, chromotropic acid, fluorescein, α-naphthylamine, B-naphthylamine, phloxine, salicylic acid, acridine, dichlorofluorescein, 3,6-dioxyanthone, B-methylesculetin, resorufin, quininic acid, and mixture thereof.
Claim 19
Dependent Claim
33 words
The method of claim 14 further comprising the step of forming dry pellets of said composition by compaction at a pressure of at least 2 tons per square inch (140 kg/cm 2 ).
Claim 20
Dependent Claim
12 words
The method of claim 15 further adding magnesium stearate to said composition.
Claim 21
Dependent Claim
59 words
The method of claim 14 wherein said nut shells and said ginger rhizomes are ground to a particle size capable of passing through a No. 30 mesh screen and said dry pellets are formed by compaction at a pressure between 20 tons per square inch (1,4000 kg/cm 2 ) and 40 tons per square inch (2,800 kg/cm 2 ).
Claim 22
Dependent Claim
53 words
The method of claim 16 wherein the proportions by weight of said water-soluble leak detector additive, ginger rhizomes, boric acid powder, sodium lignin sulfonate powder, magnesium stearate and ground hardwood nut shells are respectively 2 to 12%, to 50 to 75%, 1.5 to 3.5%, 3 to 6%, 0 to 2% and the balance.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-05-04 | 1990-11-03 | 1991-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-04 | 1994-11-03 | 1995-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-04 | 1998-11-03 | 1999-05-05 | $7700.00 | Window Closed / Lapsed |